Log4j 2
  1. Log4j 2
  2. LOG4J2-181

SocketAppender reconnection doesn't work

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 2.0-beta4
    • Fix Version/s: 2.0-beta5
    • Component/s: Appenders
    • Labels:
      None

      Description

      This issue was actually reported by Werner Goeschl on the developers mailing list.

      We configured a SocketAppender with a reconnectionDelay and defaultLayout (SerializedLayout) in a XML-Config File.
      After starting the application, the SocketAppender tries to open the socket periodical.
      As the next step, we start the application with the SocketServer, and so the Appender connects to it.
      But after we get the following Exception, when we will open the ObjectInputStream (final ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());

      Exception in thread "Thread-2" java.lang.RuntimeException: java.io.StreamCorruptedException: invalid stream header: 7372003E
      at test.logger.LoggerTest_1$TCPSocketServer.run(LoggerTest_1.java:83)
      Caused by: java.io.StreamCorruptedException: invalid stream header: 7372003E
      at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
      at java.io.ObjectInputStream.<init>(Unknown Source)
      at test.logger.LoggerTest_1$TCPSocketServer.run(LoggerTest_1.java:72)

      The reason is:
      At the Startup is no socket server available, therefore a dummy ByteArrayOutputStream is created.
      See TCPSocketManager:230
      After that, the Header of the layout (Object stream header) is written to the Dummy ByteArrayOutputStream.
      See AbstractOutputStreamAppender:62

      If the Reconnector-Thread succeeds, the Dummy ByteArrayOutputStream is changed to the OutputStream from the socket.
      See TCPSocketManager:175
      But after this action the object stream header is not written again!

        Activity

        Hide
        Ralph Goers added a comment -

        Fixed in revision 1460497. Please verify and close.

        Show
        Ralph Goers added a comment - Fixed in revision 1460497. Please verify and close.

          People

          • Assignee:
            Ralph Goers
            Reporter:
            Ralph Goers
          • Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development